The subtle difference is that prop:url is potentially a read/write binding (the component could attempt to change its parameter which would attempt to update the url property, if a settter method exists).
Expansions always result in a read-only value. You can also do things like: <a href="mailto:${contactEmail}";>Send mail to ${contactEmail}</a> That is, you can mix text and expansions inside an attribute value to result in the final string bound to the href parameter. Finally, if an element is not a component, then prefixing an attribute value with "prop:" will not convert it to binding, the literal text "prop:url" will be sent to the client. On Mon, Apr 5, 2010 at 2:40 PM, Thiago H. de Paula Figueiredo <thiag...@gmail.com> wrote: > On Mon, 05 Apr 2010 18:19:21 -0300, Pierce T. Wetter III <pie...@paceap.com> > wrote: > >> Are these exactly the same or is there a subtle distinction between >> them?> >> <a href="${url}"></a> > > This is the same as ${prop:url}. The prop binding is the default one for > expressions and for the majority of components' parameters. > >> <a href="prop:url"></a> > > I guess you meant <a href="${prop:url}"></a>. > > -- > Thiago H. de Paula Figueiredo > Independent Java, Apache Tapestry 5 and Hibernate consultant, developer, and > instructor > Owner, software architect and developer, Ars Machina Tecnologia da > Informação Ltda. > http://www.arsmachina.com.br > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > > -- Howard M. Lewis Ship Creator of Apache Tapestry The source for Tapestry training, mentoring and support. Contact me to learn how I can get you up and productive in Tapestry fast! (971) 678-5210 http://howardlewisship.com --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
